v0.2.0

• This version switches from backend storage from Redis to MongoDB.
• This version now records more visitor information, not only the IP address, but also the user agent, and referrer from request header.
• The frontend supports a statistic user interface for demonstrating PV/UV, referrers, visitor devices/browsers, etc.

v0.1.0

• This version uses Redis and backend storage.
• Offers a redir command for server-side operations
• Basic IP based PV/UV statistics